Telescoping-chute structure.



PIIteIIIcd June l2, 1917.

2 SHEETS-SHEET l.

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H. A. CARPENTER I A. W. WARNER.

TELESCOPING CHUTE STRUCTURE. APPLICATION FILED SEPT. I6. I9I4,1.229,224.

WITN ESSES H. A. CARPENTER 61 A. W. WARNER.

TELESCOPING CHUTE STRUCTURE. y

APPLICATION FILED SEPT. 16. |814. 1 229 224 Patented June 12, 1917..

' 2 SHEETS-SHEET 2.

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'HENRY A. CARPENTER AND ARTHUR w. WARNER,

or SEWICRLRY, RRNNsYLvANrA,

AssrGNoRs To R'rTRR-CONLRY MANUFACTURING corarANY, or PITTSBURGH, PENNsYLvANIA, A CORPORATION OF NRW JERSEY.

Specification of Letters atent.

Patented J une 12k, 1951*?.

Application filed September 16, 1914. Sieral No. 862,031.

To all whom t may concern.'

Be it'lrnown that we, HENRY A.. CARPEN- 'rnn and ARTHUR 1V. VARNER,citizens of the Unitedl States, residing at Sewickle-y, in the county ofAllegheny and State of Pennsylvania, have invented certain new anduseful lmprovements in Telescoping-Chute Structures, of which thefollowing is a specifica tion.

rlhis invention relates to improvements in telescoping chute structuresparticularly adapted for use in connection with the charging anddischarging apparatus for gas retorts, the structures being adapted toform a passageway for the coal which is to be charged to the vretorts.

Charging and discharging apparatus shown in United States Patents.#1,171,398 of February 8, 1916, and #1,171,111 of February 15, 1916,employ a hopper containing coal to be charged, a horizontally movablecharger, and a telescopic conduit for delivering a charge of coal to thecharger at suitable time intervals. The first patent mentioned alsoshows means for effectively preventing the escape of dust dur-` ing thepassage of the fine coal from the supplyl to the charger.

In the telescopic chute construction shown.

in Patent #1,171,398 above referred to, the inner section of the chuteis iiXedly positioned as to height and the remaining sections movable'relatively thereto in a vertical direction while retaining the jointsbetween the sections and frame substantially dust proof.

In operation of structures of this character it has been found desirableto provide means for permitting an adjustment of the inner sectionsupporting means under normal operating conditions as well as a verticalmovement of said'means under abnormal conditions, and the presentinvention has among its objects means for accomplishing these ends whilemaintaining the advantages present in the patented structure mentioned.1n the construction shown herein we provide means for supporting thechute with its opposite ends independently supported under normalconditions and with a common support under abnormal conditions.

In the accompanying drawings, in which similar reference charactersindicate similar parts in each of the views,

Figure 1 is a vertical cross-sectional view of a telescopic conduit'andits supporting means constructed in accordance with the presentinvention, the parts being shown in telescoped position; v

Fig; 2 is a horizontal sectional View taken on the line 2-2 of Fig. 1; yj

Fig. 3 is a side elevation .of the telescope structure shown as securedto a beam carried by a charging machine; and

Fig. l is a detail sectional view showing the manner in which theclust-proof joint is formed when-sections are extended.

In the accompanying drawings, 10 designates ajplural-ity of sectionsadapted to telescope, these sections being of suitable configuration 4inhorizontal section, this contiguration in the use heretofore referred tobeing preferably rectangular. These sections are generally of similarform butv of different area on such horizontal section, having theirupper ends bent outwardly to form flanges 11, these flanges being of alateral width greater than the distance between adjacent sections. Eachflange 11 is also provided with a member 12 which is of a width greaterthan the width of the flange and preferably projects both inwardly andoutwardly beyond the flange as shown in Fig. 1,l these members beingpositioned on the top face of the iiange.

Externally of the bottom of each section is provided a strip member 13,this member extending into the space between two sections, and formingboth a stop member to limit the extending movements of the next outersection by contact therewith of the member 12 of said next section,these two members alsoV acting to form the joint when the relativemovements of the twos'ections place them in extended relationship. Whenthe sections are in telescoped position, the

members 12 contact with the end faces of theliang'es 11 and thus providethe closed Y relative joint between such sections.

However, the inner section 102L and the outer section 10b dilfersomewhat from the general section structure, the flange 11 being omittedwith respect to the section 10a and the strip member 13 omitted inconnection with section 10b. y

The section 10a, instead of being supported by the remaining sections,is secured to the downwardly projecting portion of a frame 14 whichloosely surrounds a stationary conduit 15 projecting downwardly fromthe. hopper (not shown). The strips 1 2a for the first` movable innersection serve the functions of the strip 12 for the' said section bycontact with the horizontal portion of the member 14.

The supporting members 14 are carried by a' plurality of threaded rodsor bolts 16, said rods or bolts being secured to the member 14 andadapted to extend upwardly through openings in an outwardly flangedportion 17 of the stationary frame, said rods or bolts being freelymovable through said opening and carrying above the flanged portion 17suitable supporting devices such as nuts 18 which act in the nature ofseats. The outer section 10b is secured to angle bars 19, these barsbeing secured to channels 2O carried by girder 21 of the chargingmachine, said girder being adapted to travel vertically by the action ofthe hoisting mechanism of the machine, represented in Fig. 3 by thethreaded member 22, the rotation of the latter acting to move the girder21 in a vertical direction. Since the girder and the charger arerelatively positioned to have their vertical movements incorrespondence, it will be understoodthat any vertical movement of thecharger will provide a corresponding movement to the channels 20 and tothe outer section 10b and retain the lower end of the chute in permanentposition with respect to the charger, but movable with respect to thehopper. The lower end of the outer section is preferably contractedinwardly below the lower ends of the remaining sections 10, thus forminga passagewayv through the inner member 10*l leading toward the charger(not shown). Said contracted lower end is supported by a suitable casing23 secured to a framework member 23a of the charger. v

As will be seen in Fig. 1, in which the sections are shown astelescoped, all of the intermediate sections are supported by the outersection 10b by reason of the superposed contact of the lianges 11 andmembers 12, the contact thusformed causing the member 12a to contactwith the member 14. This is the positions of the parts whenV the chargeris in the zone of safety for the upper row of retorts. Should theoperator, in moving the hoisting mechanism, cause the charger to moveupwardly beyond a predetermined point, the contact engagement of thepack would simply cause the member 14 to be raised a small distance andthus place'the weight of the inner section and the member 14 on the packinstead of on the nuts 18, the rods or bolts 16 passing upwardly duringsuch movement. Obviously, a downward movement of the charger permits thepack to move downwardly, and when contact is made between the nuts 18and the liange 17, the weight of the inner section and of the member 14will be transferred from the pack to the ange 17. If the downwardmovement of the charger is suliicient to bring it within the next zoneof safety, the travel of the girder 21 will have been sufficient tocause the pack (with the exception of the section 10a) to movedownwardly a distance which will place the member 12 in contact with thestrip member' 13 of the section 10a', this being` the position shown inFig..4 of the drawings, and in which the joint between the member 10aand the next outer member is closed between the member 12a and the stripmember 13 of section 10, Similarly, a further downward movement thesucceeding Zone of safety causes the next inner section to contact withthe strip 13 of the section previously extended, thus placing the weightofthe previously extended section on the flanged portion 17 instead ofthe charger member 19, this divided support being the normal conditionof the conduit and changed only when the upward movement has reached thepoint where the nuts 18 are carried ont of contact with the flangedportion 17 whereupon the entire support is placed on the an- I glemembers 19. As this latter takes place only in connection with the upperrow of retorts it may be considered somewhat as' an .abnormal condition.

Obviously, this movement of the member -14 under abnormal conditionwould'be relative to the member 15 and to permit of a ready movement ofthe parts without deof the charger tostroying the dust-retaining jointstructure Y we preferably employ a felt packing 24 interposed betweenthe member 14 and a plate 25 secured in spaced relation thereto, thefelt packing being preferably held in contact with the member 15 bymeans of springs or other suitable devices 26. rangement provides forawipe joint structure, the movements of the member 14 are only undersuchv abnormal conditions and relatively small, so that the generalobjection to wipe joints in'connection with devices of this type becomesimmaterial.

As will be readily understood, by arranging the rods or bolts 16 asthreaded mem- While this arbers, the points of contact of members 12with members 13 can be adjusted, such adjustment providing the properlocation for the inner section 10, and the remaining sections providingtheir contacts at the proper points in connection with succeedinghorizontal rows or' retorts, it being understood that the length oftravel of each section between a point where its member 12 contacts withthe superposed flange 11 of the adjacent section and the point where itcontacts with the member 18 of that section corresponds to the distancebetween the centers of adjacent retorts.

That we claim is: 1. In combination, a telescopic sectional chute, asupply member entered therein,

means for supporting` the chute with its opposite ends independentlysupported under normal conditions and with a common support underabnormal conditions, said means including an end-section supportsurrounding the supply member and movable independently thereof andrelatively thereto under abnormal conditions.

2. In combination, a telescopic sectional chute, a supply member enteredtherein, means for supporting the chute with its opposite endsindependently supported under normal conditions and with a commonsupport under abnormal conditions, said means including an end-sectionsupport surrounding the supply member and movable independently thereofand relatively thereto under abnormal conditions, and means foradjusting the end-section support relatively to the supply member.

3. In combination, a fixed supply member, a telescoping sectional chute,and means for supporting the chute with its opposite ends independentlysupported under normal conditions and with a common support underabnormal conditions, said means including a lixed support, anend-section support surrounding the supply member, and means interposedbetween said last mentioned supports, comprising rods carried by theendsection support and projecting through and supported by the iixedsupport, said endsection support -being movable relatively to the supplymember under abnormal conditions.

Ll. In combination, a supply member, a sectional telescopic chuteexternal of said member and forming an extension of the passagewaythrough the member, a chute support external o said member andadjustable lengthwise thereof, and joint closing means carried by thetelescoping sections.

5. In combination, a 'supply member, a telescoping sectional chuteexternal of said member, means for supporting the chute with itsopposite ends independently supported under normal conditions and with acommon support under abnormal conditions, said means including anend-section support movable relative to the supply member under suchabnormal conditions, and dust-proofing packing structures movable withsuch endseetion support.

6. In combination, a supply member, a Atelescoping sectional chuteexternal oi' said member, independent supporting members for theopposite ends of the chute, one of said supporting members beingnormally ixedly positioned relative to said supply member, and means forvariably adjusting such normal position.

7. In combination, a supply member, a telescoping sectional chuteexternal of said member, independent supporting members for the oppositeends of the chute, one of said supporting members being normally ixedlypositioned relative to said supply member, and means for variablyadjusting such normal position, said latter means including a lixedsupport, threaded rods carried by said supporting member and supportedon the fixed support, said rods carrying seats adjustable thereon.

8. In combination, a supply member, a chute external of said member andforming an extension of the passageway through the member, a. chutesupport external of said member and adjustable lengthwise thereof, andpacking for closing the joint between the member and support.

9. In combination, a supply member, a chute external of said member andforming an extension of the passageway through the member, a chutesupport external of said member and adjustable lengthwise thereof, andpacking for closing the joint between the member and support, saidpacking being carried by and movable with the support.

10. In combination, a supply member, a chute external of said member andforming an extension of the passageway through the member, a chutesupport external of said member and adjustable lengthwise thereof, andpacking for closing the joint between the member and support, saidsupport carrying a plate member adapted to form a packing receivingrecess.

11. In combination, a supply member, a chute external of said member andforming an extension of the passageway through the member, a chutesupport external of said member and adjustable lengthwise thereof, andpacking for closing the joint between the member and support, saidsupport carrying a plate member adapted to form a packing receivingrecess1 said recess carrying the yieldable means for retaining thepacking in contact with said member.

12. In combination, a supply member, a

chute external of said member and forming ing freely movable in onedirection relative an extension of the passageway through the to thefixed support under abnormal condimember, a chute support external ofsaid tions.

member and adjustable lengthwise thereof, In testimony7 whereof We aiXour signa- 5 and packing for closing the joint between tures in presenceof two witnesses.

the member and support, a iiXed support HENRY A. CARPENTER.

above said adjustable support, and means ARTHUR W. TWARNER. extendingbetween said supports normally lVitnesses: cooperating with the iXedsupport to posi-- ADA M. STEELE,

l0 tion the adjustable support, said means be- S. F. FLETCHER.

Copies of this patent may 'be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, I). C.

